Cisco IOS XE Software for ASR 1000 Series 20 Gbps Embedded Services Processor IP ARP DoS (cisco-sa-esp20-arp-dos-GvHVggqJ)

high Nessus Plugin ID 142366

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version and configuration, the Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers with a 20-Gbps Embedded Services Processor (ESP) running on the remote device is affected by a denial of service vulnerability. An unauthenticated, adjacent attacker can exploit this by sending a malicious series of IP ARP messages to an affected device to exhaust system resources, which would eventually cause the affected device to reload.

Please see the included Cisco BIDs andCisco Security Advisory for more information.

Solution

Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCva53392, CSCvu04413

Plugin Details

Severity: High

ID: 142366

File Name: cisco-sa-esp20-arp-dos-GvHVggqJ-iosxe.nasl

Version: 1.9

Type: combined

Family: CISCO

Published: 11/3/2020

Updated: 9/28/2023

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

Vector: CVSS2#AV:A/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2020-3508

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios_xe

Required KB Items: Settings/ParanoidReport, Host/Cisco/IOS-XE/Version, Host/Cisco/IOS-XE/Model

Exploit Ease: No known exploits are available

Patch Publication Date: 9/24/2020

Vulnerability Publication Date: 9/24/2020

Reference Information

CVE: CVE-2020-3508

CWE: 400

CISCO-SA: cisco-sa-esp20-arp-dos-GvHVggqJ

IAVA: 2020-A-0439-S

CISCO-BUG-ID: CSCva53392, CSCvu04413

Detections

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